Autosurf-Need script&customise

Hi I am looking for a programmer that has very good knowledge about autosurf program and can make customizations to it. If you already have a script that is better I would consider this also but i need some modification on that script. I need a script same like this website : [login to view URL] [login to view URL] Here are things I currently need done to the current script: 1) Verify and make sure it's secure. New idea and security features it will be great. 2) Add a fee to the cost upgrade unit or for when a purchase made. 3) Show member when units expires automatically under the Account details - Account section in members area & also in the members history. 4) Send emails when a members unit are about to expire or have expired. 5) Have the stats that are shown on the main page updated automatically. 6) Better stats for the admin if possible. 7) Optimize the script if needed for better performance. 8) Any other improvements you recommend or have done in the past. This is it for now. Would like someone that will be available in the future if more changes are needed and also someone I can contact in an emergency situation if the site malfunctions due to a script error. Please include examples of your work. Especially sites that are currently running you have done work for. Regards, Mod